Scbjbeit



LL RICHARDSON.

SCREEN, CURTAIN, 0R LIKE ARHCLE.

A PLICAHON FILED OCT. 22, I918.

latontod July. 8, 1919.

2 SHEETSSHEET l WITNESSES 11L RICHARDSON.

SCREEN, CURTAIN, UR LIKE AHIICLF.

Mrucmlon mu) M21122. mu.

lutvmmi July 8, 191$).

2 SHEETS SHLU' A TTORA/EYS TELBERT I.-. RICHARDSON, OF BROOK, NEBRASKA.

SCREEN, CURTAIN, OR LIKE Altt'lIQLE.

LSUFDAHC.

Specification of Letters Patent.

application lileil October 22, 1918. Serial No. $359,273.

To all unto/n it may concern:

lie it known that I, Tnonen'r L. Rienann- SON, a citizen of the UnitedStates,. and a resident of Brock, in the county otNemaha and State ofNebraska, have invented a new and improved Screen, Curtain. or likeArticle, of which the-following is a description.

My invention while more particularly designed for use in connection witha curtain or screen is adapted for use in any structure having a windowor opening; adapted to be closed shaded, or screened by sheet mate rial:For the purpose of illustration, I have shown my invention in connectionwith a' window screen; The invention particularly relates to a screen,curtain or the like adapt ed to he wound on a spring" roller or no woundtherefrom.

The general object of the invention is to provide a novel means formaintaining the screen, curtain, or the like in flat form.

Other objects of the invention and its all-- vantages will appear as thedcsrri iition proceeds.

l tetercncc is to be had to the acronipalvvinn drawing-s forming a partof this specification, it beingunderstod that the draw inns are merelyillustrative. of one example of the invention.

Figure .1 is a trout elevation of a window frame and screen having myinvention enlbodied therein;

Fig. 2 is an enlarged vertical section through the upper portion of thestructure as indicated by the. line 2-:2, Fig. 1;

Fig. is an enlarged cross section as indicated by the lines 3-}; in ligs. l and (3;

Fig. 4- is a detail in Vertical section on an enlarged scale, the viewbeing taken on the line 4--4, Fig. l;

Fig. 5 is a transverse vertical section on the line -!i. Fig. (31' Fig.(3 is a vertical section at right angles to Fig. 5;

Fig. 7 is a. detail in transverse vertical section given to show lockingmeans associated with the lower roller shal't ol the actuating chain ofthe curtain for the screen orthc like.

Fig. 8 is a fragmentary horizontal lil lr tinn taken through the lowerhar attached to the screen.

'lhe l'raine in connection with which in r improved screen. curtain. orthe like is to be employed, is shown in the form of a metal window frame10 having stiles ll. A screen 12 or other suitable sheet material issecured at its upper end to a spring roller 13 mount ed to turn inbearings l-il. within a housing 1 lforming, part of the frame 10.

The sheet material 12 extends from the roller 13 downwzn-dly through aslot 15 in the bottom oi" the top rail 16 of the frame and said sheet atthe side edges extends through vertical slots 17 in. the inner walls 11ot' the stiles ll. Along the side edges of the sheet material 12 withinthe hollow stiles 11. said sheet has applied thereto flexible strips 18of metal or equivalent material, and said strips are formed each with avertical series of holes 19 to receive correspond ingly spaced pins 20extending from the outer side of a chain 21. here shown as an endlesschain running: over upper and lower rollers on shafts 23 turning inhearings in brackets '39. 30. The chain made of flat links and thehinges are at the inside and adapted to engage in notches 25 in therollers 22. The links oi the chain 21 and hinges thcreo't at one sideedge oi the chain runs adjacent to the inner walls 11 and at. theopposite sides the links and the strips 18 are overlapped by a guardplate 27 having a flange whereby the strips 1 are prevented 't'rom beinglaterally disengaged from the chain pins 20 and said strips and thelinks are prevented from working outwardly through the slots 17. A flapor packing strip 15 may he provided at the slot 15 to exclude flies andother insects.

To the lower edge of the sheet 12, a strip or bar 32 is sewn-ed andformed in sections adapted to clamp the sheet tlna'ehetween. The rearsection 32'' ot the strip has its -Front wall extended at the endsforming project- .ingg' flanges 32" which have holes 32 to receivepins20 ot' the chains The. front section 32 has a downwardly extendingFlange 532 to overlap the sill 33 ot' the Window frame 10 or likestructln'e. and the arrangement is such that the said flange 32" willoverlap and form a closure at the bottom of the seri-ein or the like,between the same and the window, even though the screen is not broughtto its extreme lowermost position.

'lhe sprin g roller l3 tends to wind up the sheet l. and in ord r tohold the sheet material l'roln being raised, locking- IIIHUIS l OI' thelower shalt if is provided in the l'orln of a ratchet wheel Set and agravity pawl Patented July a, 19W.

ratchet '34-, the spring roller roll the sheet mateitial l2. 'm'al'maybe lowered by taking hold of the pivoted at one end as at 36 Within astile 11-.

liottom "oar 32. In the raising and lowering of the sheet material, theengagement of the pins QO-Witli the strips 18 causes the chain to turn,so that the pins may release themselves from, the strips 18 as the pinspass about the upper roller 22. Thebar 32 will always be engaged withits 3ins'20 to maintain the connection between the chain and the screenor the; like on Whioh the bar 22 is attached. Thus the strips 38 will bemaintained substantlally flat against the adjacent face of the chain,the engagement of the pins and 2a the contact with the chain preventingany buckling of the sheet material At the same time.v the screen or thelike may be readily raised or lowered and will be firinly held in theadjusted position by the pawl 05 and '25 ratchet 34.

I would statc in conclusion that while the illustrated exampleconstitutes a practical embodiment of my invention, I do not limitmyself strictly to the mechanical details herein illustrated, sincemanifestly the same can be considerably varied without departure fromthe spirit of the invention defined in the appended claims.

Having thus described my invention, I

.35 claim as new, and desire to secure by Letters Patent:

1. A Lame presenting stiles, a roller mounted at the upper portion ofsaid frame,

ana ass sheet material connected with said roller, means at the sideedges of said sheet material presenting holes, chains in said stiles,pins on said chains adapted to engage in said holes, wheels over whichsaid chains run, and means to hold the chains and sheet material. frommovement.

2. A, frame presenting stiles, a spring roller mounted at the upperportion in said frame, sheet material secured to said roller to Windthereon or to unwind, said stiles liai-ing vertical slots 'tl'iroughwhich the sheetmaterial extends, upper and lower wheels in said stiles,an. endless chain extending about said wheels, pins on the chain, stripson the side edges of the sheet material and presenting holes adapted toreceive said pins, a ratchet turning with the lower Wheel, and a pawlengaging said ratchet and extending to the exterior of the frame,whereby to release the ratchet and permit the spring roller to raise thesheet material.

3. A frame presenting; stil s, a spring roller mounted at tlic upperportion of said frame, sheet material secured to said roller to indthereon or to unwind, a bar carried by said shcct niaiicrial at itslower edge, said har presenting a depending flange adapted to ovcrlaptl-n shcct material is lowered, end flanges on said bar extending intothe said stiles, endless chains in said stiles, pins on the chainsengaging the last mentioned flanges, wheels ovcr which said chains run,and means asso- ('iai'cd with the lower wheel to prevent turning of thelatter or to release the whceL 'lTlCLB Elll L. HOI-IARDSQN.

\ frame at the bottom when the

